The aircraft took off after fumigation.
According to sources, in a bizarre incident, a male passenger on an IndiGo flight to Pune was told by cabin crew that he was positive when the aircraft was preparing for take-off.
Sources said the passenger informed the cabin crew that he had tested positive for coronavirus, after which the aircraft returned to the bay and the person was unloaded.
Sources said that after fumigation, the aircraft took off for Pune at around 7 pm.
A senior Delhi Police official said that the airline has not received any complaints about the incident so far.
Further details could not be immediately ascertained.
There was no official statement from Indigo about the incident.